NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 909
ONVOY, LLC - CA 6
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
BANDWIDTH.COM CLEC, LLC - CA 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-04-26 909-515-1XXX 1000–1999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H S BERNDINO CA
2018-04-26 909-530-4XXX 4000–4999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H ARROWHEAD CA
2018-04-26 909-588-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H MENTONE CA
2018-04-26 909-602-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H REDLANDS CA
2018-04-26 909-679-4XXX 4000–4999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H COLTON CA
2018-04-26 909-698-6XXX 6000–6999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H CRESTLINE CA
2018-04-26 909-737-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H HIGHLAND CA
2018-04-26 909-768-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H CALIMESA CA
2018-04-26 909-789-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H ONTARIO CA
2018-04-24 909-415-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BIGBEAR LK CA
2018-04-13 909-507-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2018-04-13 909-507-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2018-04-11 909-789-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-04-11 909-789-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-04-04 909-407-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2018-04-04 909-407-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2018-04-04 909-407-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2018-04-04 909-407-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2018-04-04 909-407-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2018-04-03 909-288-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CLAREMONT CA
2018-03-29 909-470-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-03-29 909-470-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-03-16 909-449-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2018-03-16 909-449-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2018-03-16 909-955-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D RIALTO CA
2018-03-09 909-602-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2018-03-09 909-761-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2018-03-08 909-789-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ONTARIO CA
2018-03-02 909-768-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2018-01-23 909-317-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ETIWANDA CA
2018-01-23 909-317-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ETIWANDA CA
2018-01-16 909-760-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DIAMONDBAR CA
2018-01-10 909-407-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2018-01-08 909-470-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-01-08 909-470-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-01-08 909-470-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2018-01-08 909-688-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2018-01-08 909-775-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2017-12-22 909-789-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2017-12-19 909-995-0XXX 0000–0999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ONTARIO CA
2017-12-19 909-995-1XXX 1000–1999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ONTARIO CA
2017-12-19 909-995-2XXX 2000–2999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ONTARIO CA
2017-12-19 909-995-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ONTARIO CA
2017-12-18 909-530-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2017-12-18 909-530-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2017-12-14 909-789-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2017-12-12 909-738-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2017-12-12 909-738-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2017-12-12 909-738-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2017-12-08 909-546-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIALTO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.